Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 16.0mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Wed night). Winds increasing (calm on Thu afternoon, fresh winds from the WNW by Fri night).
Osa Weather (Days 4-6): Drizzle on Mon morning turning to light snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sun morning, min -5°C on Mon night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -2 |  | ||||
| Bottom Lift: | 1 | |
Wed 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  |  | |  | | | | | | |  | |
light snow | some clouds | some clouds | clear | some clouds | light rain | heavy rain | light snow | light snow | cloudy | light snow | some clouds | some clouds | some clouds | light rain | light snow | snow shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | 3 | |
— | — | — | — | — | 1 | 11 | 4 | — | — | — | — | — | — | 1 | — | — | |
max °C | 2 | 1 | 7 | 8 | 4 | 7 | 6 | 3 | 1 | 1 | -1 | 4 | 4 | 0 | 3 | 2 | 0 |
min °C | 1 | -1 | 3 | 5 | 3 | 6 | 5 | -1 | 0 | -1 | -2 | 1 | 1 | -1 | 2 | 0 | -5 |
-4 | -6 | 0 | 5 | -1 | 2 | 0 | -8 | -6 | -7 | -7 | -1 | -2 | -4 | -1 | -6 | -11 | |
91 | 70 | 45 | 46 | 53 | 66 | 95 | 92 | 87 | 75 | 90 | 75 | 60 | 49 | 72 | 92 | 97 | |
900 | 800 | 1700 | 1850 | 2200 | 2150 | 1750 | 1000 | 650 | 750 | 500 | 700 | 1100 | 950 | 900 | 900 | 550 | |
 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — |
 | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — |
Moderate rain (total 16.0mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Wed night). Winds increasing (calm on Thu afternoon, fresh winds from the WNW by Fri night).
Drizzle on Mon morning turning to light snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sun morning, min -5°C on Mon night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.2 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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